Time-Dependent Current-Density-Functional Theory of Spin-Charge Separation and Spin Drag in One-Dimensional Ultracold Fermi Gases

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Time-Dependent Current-Density-Functional Theory of Spin-Charge Separation and Spin Drag in One-Dimensional Ultracold Fermi Gases

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/7679

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Title: Time-Dependent Current-Density-Functional Theory of Spin-Charge Separation and Spin Drag in One-Dimensional Ultracold Fermi Gases
Author: Xianlong, Gao; Polini, Marco; Rainis, Diego; Tosi, M. P.; Vignale, Giovanni, 1957-
Keywords: density functional theory
local density approximation
gradient and other corrections
degenerate fermi gases
fermions in reduced dimensions
Date: 2008-11-13
Publisher: American Physical Society
Citation: Phys. Rev. Lett. 101, 206402 (2008) [4 pages]
Abstract: Motivated by the large interest in the nonequilibrium dynamics of low-dimensional quantum many-body systems, we present a fully microscopic theoretical and numerical study of the charge and spin dynamics in a one-dimensional ultracold Fermi gas following a quench. Our approach, which is based on time-dependent current-density-functional theory, is applicable well beyond the linear-response regime and produces both spin-charge separation and spin-drag-induced broadening of the spin packets.
URI: http://hdl.handle.net/10355/7679
ISSN: 0031-9007

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